*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    display: flex;
    min-height: 80vh;
    justify-content: center;
    align-items: center;
}

.progress{
    display: flex;
    justify-content: space-between;
    width: 350px;
    margin-bottom: 30px;
    position: relative;
}

.progress::before{
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    background-color: #e0e0e0;
    height: 4px;
    width: 100%;
    z-index: -1;
    transform: translateY(-50%);
}
.progress-h{
    position: absolute;
    left: 0;
    top: 50%;
    background-color: #d242e5;
    height: 4px;
    width: 0%;
    z-index: -1;
    transform: translateY(-50%);

}
.circle{
    width: 30px;
    height: 30px;
    border: 3px solid #e0e0e0;
    border-radius: 50%;
    background-color: #fff;

    transition: all 0.2s ease;

    /* 文字居中 */
    display: flex;
    align-items: center;
    justify-content: center;
}

.active{
    border-color: #d242e5;
}

button{
    background-color: rgb(112, 85, 220);
    box-shadow: 10px 5px 7px rgb(110, 80, 200);
    border-radius: 20px;
    color: white;
    font-size: 24px;
    border: none;
    width: 90px;
    height: 50px;
    margin: 20px;
    cursor: pointer;
    transition: all 0.2s;

    transform: translateX(50%);
}
button:active{
    background-color: rgb(200, 194, 243);
    box-shadow: 10px 5px 7px rgb(200, 194, 243);
}

button:disabled{
    background-color: rgb(200, 194, 243);
    box-shadow: 10px 5px 7px rgb(200, 194, 243);
    cursor: not-allowed;
}